Feature Request - Frequency-selective crossfading

[mixxxbot]

Reported by: esbrandt
Date: 2009-11-25T18:31:44Z
Status: Confirmed
Importance: Wishlist
Launchpad Issue: lp488363
Tags: effects
Attachments: upload_idea_frequency_crossfader.png

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While song A has a nice vocal you may want to mix it together with those wobbling bassline from song B.
Sure you can use the frequency kill buttons but thats not a smooth transition.

A frequency-selective crossfader is like the regular crossfader but makes smooth transitions in a specific band ( High,Mid,Low) between two track possible.

[mixxxbot]

Commented by: esbrandt
Date: 2009-11-25T18:31:44Z
Attachments: upload_idea_frequency_crossfader.png

[mixxxbot]

Commented by: daschuer
Date: 2015-01-15T21:17:37Z

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Since we have a dedicated filter knob now, we may connect the crossfader to this.

[mixxxbot]

Commented by: metastableB
Date: 2015-02-16T22:20:23Z

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Hello, Id like try and implement this feature . Can you guys give me a hint to where I should be looking at ? Thanks :)

[mixxxbot]

Commented by: daschuer
Date: 2015-02-17T08:05:01Z

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Some Ideas:

For me the four x-fader layout, shown in Jus's layout is a bit overdone or hard to use.
Lets step back and look at the use-cases.
We want to control a transition between two tracks, in a fancy way other than just cross fade.

We have already a bunch of controls to do it:

• [Master] crossfader
• [ChannelN] volume
• [ChannelN] pregain
• [EqualizerRack1_[ChannelN]_Effect1] ...
• [QuickEffectRack1_[ChannelN]] ...
• [EffectRack1_EffectUnit1],group_[BusLeft] ...

Most of them will put a significant load to the CPU when used. Introducing a new effect chain at the x-fader seams not that purposeful.

We need more a intelligent meta control, that can be connected to the controls above, to achieve the desired transition.

Instead of introduce a set of new controls, we should reuse the Effect System:
[QuickEffectRack1_[Master]]

The fist and default effect effect should be controlling the [Master] crossfader
with [QuickEffectRack1_[Master]] ,super1

Later we will add:
transition = 1 -> use Quick effect
transition = 2 -> user defined

User defined, could be an XML or a js. file, that controls the connection and the ratio of the transition_fader to any other CO in Mixxx.

This is a big project, that should be divided in small packages.
A good start might be to just to add the "transition_crossfader" effect.

Any comments, ideas?

[mixxxbot]

Commented by: daschuer
Date: 2015-02-17T12:56:31Z

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Related Bug #⁠1384873

[mixxxbot]

Commented by: Be-ing
Date: 2017-08-01T16:27:18Z

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This could already be done with controller mappings, but this feature would be particularly useful for keyboard & mouse setups.